//
//  UIButton+LoadImage.m
//  KDFDApp
//
//  Created by sword on 2017/1/6.
//  Copyright © 2017年 cailiang. All rights reserved.
//

#import "UIButton+LoadImage.h"

#import "UIButton+WebCache.h"

@implementation UIButton (LoadImage)

static char topNameKey;
static char rightNameKey;
static char bottomNameKey;
static char leftNameKey;


- (void)loadBackgroundImageWithImagePath:(NSString *)imagePath {
    
    [self loadBackgroundImageWithImagePath:imagePath placeholderImage:[UIImage imageNamed:@"default_image"]];
}
- (void)loadBackgroundImageWithImagePath:(NSString *)imagePath placeholderImage:(UIImage *)image {
    
    [self sd_setBackgroundImageWithURL:[NSURL URLWithString:imagePath] forState:UIControlStateNormal placeholderImage:image options:SDWebImageRefreshCached];
}

- (void)loadImageWithImagePath:(NSString *)imagePath {
    
    [self loadImageWithImagePath:imagePath placeholderImage:[UIImage imageNamed:@"morentouxiang"]];
}
- (void)loadImageWithImagePath:(NSString *)imagePath placeholderImage:(UIImage *)image {
    
    [self sd_setImageWithURL:[NSURL URLWithString:imagePath] forState:UIControlStateNormal placeholderImage:image options:SDWebImageRefreshCached];
}


- (void)setEnlargeEdge:(CGFloat) size {
    objc_setAssociatedObject(self, &topNameKey, [NSNumber numberWithFloat:size], OBJC_ASSOCIATION_COPY_NONATOMIC);
    objc_setAssociatedObject(self, &rightNameKey, [NSNumber numberWithFloat:size], OBJC_ASSOCIATION_COPY_NONATOMIC);
    objc_setAssociatedObject(self, &bottomNameKey, [NSNumber numberWithFloat:size], OBJC_ASSOCIATION_COPY_NONATOMIC);
    objc_setAssociatedObject(self, &leftNameKey, [NSNumber numberWithFloat:size], OBJC_ASSOCIATION_COPY_NONATOMIC);
}

- (void)setEnlargeEdgeWithTop:(CGFloat) top right:(CGFloat) right bottom:(CGFloat) bottom left:(CGFloat) left {
    objc_setAssociatedObject(self, &topNameKey, [NSNumber numberWithFloat:top], OBJC_ASSOCIATION_COPY_NONATOMIC);
    objc_setAssociatedObject(self, &rightNameKey, [NSNumber numberWithFloat:right], OBJC_ASSOCIATION_COPY_NONATOMIC);
    objc_setAssociatedObject(self, &bottomNameKey, [NSNumber numberWithFloat:bottom], OBJC_ASSOCIATION_COPY_NONATOMIC);
    objc_setAssociatedObject(self, &leftNameKey, [NSNumber numberWithFloat:left], OBJC_ASSOCIATION_COPY_NONATOMIC);
}

- (CGRect)enlargedRect {
    NSNumber* topEdge = objc_getAssociatedObject(self, &topNameKey);
    NSNumber* rightEdge = objc_getAssociatedObject(self, &rightNameKey);
    NSNumber* bottomEdge = objc_getAssociatedObject(self, &bottomNameKey);
    NSNumber* leftEdge = objc_getAssociatedObject(self, &leftNameKey);
    if (topEdge && rightEdge && bottomEdge && leftEdge) {
        return CGRectMake(self.bounds.origin.x - leftEdge.floatValue,
                          self.bounds.origin.y - topEdge.floatValue,
                          self.bounds.size.width + leftEdge.floatValue + rightEdge.floatValue,
                          self.bounds.size.height + topEdge.floatValue + bottomEdge.floatValue);
    }else{
        return self.bounds;
    }
}

- (UIView*)hitTest:(CGPoint) point withEvent:(UIEvent*) event {
    CGRect rect = [self enlargedRect];
    if (CGRectEqualToRect(rect, self.bounds)) {
        return [super hitTest:point withEvent:event];
    }
    return CGRectContainsPoint(rect, point) ? self : nil;
}

@end
